Nick Watt Missing Person

I'm trying to trace my long lost friend Nick Watt who used to work and live in Amsterdam in 1986. Nick lived in Kirkcaldy once he returned to Scotland. He was/is married to Karen and in 1986 father of a boy and a girl, who will be around 35 and 30 now. Nick was born in oct.'62
The family might have moved to Blairgowrie, although this is not confirmed. I would like to see what has become of him and hope someone recognises this.